you're looking at some representations of albert einstein's brain. there were a lot of pictures taken the first time it was examined. one thing to pay attention to you see all these grooves within the brain. and if you think about the fact that when the brain develops, you get many more of these convolutions as your brain develops and grows. if you have more convolutions, more ridges and valleys like you're seeing there, what that means is you have more surface area sort of on the brain. that's a great place to sort of start trying to analyze just what the effectiveness, the impact of all those neurons in that area would be. if you have more grey area like that, you have more neurons and the brain can talk to other areas of the brain more easily. now, it doesn't necessarily mean someone is going to be more intelligent, but i think what we can best say is that based on images like that that the capacity is there. there's a greater capacity for the brain to talk to each other in different ways. >> i want to remind our viewers sanjay's a neurosurgeon so